package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.*;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

/**
 * @author xindezhentu
 * @create 2023-04-08 21:19 套餐管理
 */
@RestController
@RequestMapping("/setmeal")
@Slf4j
public class SetmealController {

    @Autowired
    private SetmealService setmealService;
    @Autowired
    private SetmealDishService setmealDishService;
    @Autowired
    private CategoryService categoryService;
    @PostMapping
    public R<String> save (@RequestBody SetmealDto setmealDto){


        setmealService.saveWithDish(setmealDto);
       return R.success("新增菜品成功");
    }

    /**
     * 套餐分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {

        //        构造分页构造器对象
        Page<Setmeal> pageInfo = new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage = new Page<>();

        //        条件构造器
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();

        queryWrapper.like(name!=null,Setmeal::getName,name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealService.page(pageInfo,queryWrapper);
//        对象拷贝
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");

        List<Setmeal> records = pageInfo.getRecords();

       List<SetmealDto>list= records.stream().map((item)->{
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto);
//            分类ID
            Long categoryId = item.getCategoryId();
//            根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if(category!=null) {
//                分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

            dtoPage.setRecords(list);
        return R.success(dtoPage);
    }

    /**
     * 删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long>ids){

        setmealService.removeWithDish(ids);
        return R.success("套餐删除成功");

    }
    /**
     * 根据条件查询对应的菜品数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    public R<List<SetmealDto>> list( Setmeal setmeal){
//            构造查询条件
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper();

        queryWrapper.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
//        查询是否启售
        queryWrapper.eq(Setmeal::getStatus,1);
//        添加排序条件
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);
        List<SetmealDto> setmealDtoList =  list.stream().map((item)->{
            SetmealDto setmealDto =  new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto );
            Long categoryId = item.getCategoryId();
//            根据id查询分类对象
            Category category = categoryService.getById(categoryId);
            if(category!=null){
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
//            当前套餐Id
            Long id = item.getId();
            LambdaQueryWrapper<SetmealDish> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(SetmealDish::getSetmealId,id);
            List<SetmealDish> setmealDishes = setmealDishService.list(lambdaQueryWrapper);
            setmealDto.setSetmealDishes(setmealDishes);
            return setmealDto;
        }).collect(Collectors.toList());


        return R.success(setmealDtoList);
    }
    }

